Malformed offspring, sibling matings, and selection against inbreeding in the sand lizard (Lacerta agilis)
Malformed offspring, sibling matings, and selection against inbreeding in the sand lizard (Lacerta agilis)
复制标题
沙蜥蜴（Lacerta agilis）畸形后代、兄弟姐妹交配和近亲繁殖选择
DOI：
10.1046/j.1420-9101.1996.9020229.x
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发表时间：
1996
影响因子：
2.1
通讯作者：
H. Tegelström
中科院分区：
文献类型：
--
作者：
M. Olsson;A. Gullberg;H. Tegelström
我们证明了沙蜥(Lacerta Agilis)在与兄弟姐妹交配时更有可能产生畸形的后代。有畸形的后代，如畸形的四肢和头部，在自然种群中的存活率为零。与所有兄弟姐妹都看起来正常的幼崽相比，外表正常的畸形幼崽在野外的存活率也有所下降。畸形幼体在自然种群中的比例约为10%，尽管雄性和雌性在幼体扩散方面存在差异。雄性幼体比雌性幼体离生地点远得多。
We demonstrated that sand lizards (Lacerta agilis) are more likely to have malformed offspring when they mate with siblings. Offspring with malformations, such as deformed limbs and heads, have zero survival in a natural population. Normal‐looking siblings of malformed hatchlings also had a reduced survival in the wild, compared to offspring from clutches in which all siblings appeared normal. The proportion of malformed hatchlings in the natural population was ca. 10%, in spite of differences in juvenile dispersal between males and females. Male juveniles disperse significantly further from their natal sites than do female juveniles.